Not at the moment. To do this, it's need to add a system of days. I'll think about it. And it won't be earlier than version 0.5.
But now I'll definitely add secondary characters with pregnancy.
At the moment, only in dreams, when the mother appears. In version 0.2 it will be in a dream with MC(Except that she'll start using some toys.), and only in version 0.3 it will be fully showed.
Love the anime/manga - but the character looks nothing like Riko, even if aged up. Sorry to be a dick, just wanted to throw constructive criticism out there.